Friday, April 26, 2013

Partial Lunar eclipse 25-Apr-2013

Truth is, I had no expectations from yesterday partial lunar eclipse. It was as partial as partial can be and only 1.5% of the moon surface was in the earth full shade (Umbra). The rest was in the Penumbra and 1.5% was not even in any shade... Anyway, an eclipse is an eclipse and I was curious to see how such a partial eclipse will look like. It turned out to look very good even to the naked eye, the shaded moon was obvious even in the penumbral phase. After the eclipse I observed Saturn which was near the moon.
First a photo of my tools of the trade:
Astronomy - tools of the trade






Here are some photos from the eclipse
Partial lunar eclipse
Partial lunar eclipse - Penumbarl phase

Partial lunar eclipse
Partial lunar eclipse - Beginning

Partial lunar eclipse
Partial lunar eclipse - getting better

Partial lunar eclipse
Partial lunar eclipse - noticeable

Partial lunar eclipse
Partial lunar eclipse - Greatest

Partial lunar eclipse
Partial lunar eclipse - fading

Partial lunar eclipse
Partial lunar eclipse - little bit less

Partial lunar eclipse
Partial lunar eclipse - the end
And here is tiny photo of Saturn from the same evening



Tuesday, April 23, 2013

Double Iridium Flare

Iridium flares are bright flashes of light caused by sunlight reflected from any of the Iridium satellites. We wrote about how to see the ISS an another satellites before, but this time I will present a photo of a double Iridium flare. It seems odd since the satellites are spread evenly across the sky, so how come there will be two flares in less than 2 minutes in the exact same place? The answer is that one of the satellites is active and the other one is an old one or a backup one. This is the case with the pair Iridium14 and Iridium62 satellites who gave the double flash seen below.
The exposure is for 13 seconds. I couldn't take longer exposure because there were high clouds reflecting some remaining sun light (the photos were taken shortly after sunset). Seems I missed a few seconds from the second flare (the lower) I've cropped the relevant part and stacked two photos together. I hope you will like the result:
Double Iridium Flare
Double Iridium Flare